Jaw surgery procedures

October 9, 2019

Double jaw surgery (Bimaxillary osteotomy)

During this surgery the upper and lower jaws are cut precisely, to avoid damaging important structures like the teeth and the nerves which give feeling to the upper and lower lips, gums and roof of the mouth. The upper and lower jaws are then repositioned to correct the bite of the teeth.

Animation showing the proposed plan of a typical double jaw surgery procedure.
Animation showing the proposed plan of a typical double jaw surgery procedure.

The jaw bones are then fixed using plates and/or screws, which allow the bone to knit together and to heal in the correct position. These are very small titanium plates and screws, which normally stay in place indefinitely.

Braces are then used to settle the bite over a period of at least six months.

Surgery aims to produce a well balanced facial appearance and a good functioning bite.

 

Lower jaw surgery (Mandibular osteotomy)

During this surgery the lower jaw is cut precisely, to avoid damaging important structures like the teeth and the nerves which give feeling to the lower lip. The lower jaw can then be repositioned to correct the bite of the teeth, and to improve the position of the chin.

The jaw bone is fixed by plates and/or screws, which allow the bone to knit together and heal in the correct position. These are very small titanium plates and screws, which normally stay in place indefinitely.

Braces are then used to settle the bite over a period of at least six months.

The aim is to produce a well balanced facial appearance and a good, functioning bite.

 

Upper jaw surgery (Maxillary osteotomy)

During this surgery the upper jaw is cut precisely, dividing the top jaw and repositioning it in a new position, correcting the bite of the teeth.

The jaw bone is fixed by plates and/or screws, which allow the bone to knit together and heal in the correct position. These are very small titanium plates and screws, which normally stay in place indefinitely.

Braces are then used to settle the bite over a period of at least six months.

The aim of the operation is to produce a well balanced facial appearance and a good, functioning bite.

 

Chin surgery (Genioplasty)

During this surgery the chin is divided and repositioned in its new position.

The chin bone is fixed by small titanium plates, which allow the bone to knit together and heal in the correct position. These plates normally stay in place indefinitely.

The aim of this surgery is to produce a well balanced facial appearance.

 

Upper jaw widening surgery (SARPE)

During this surgery the roof of your mouth is surgically divided.

After a period of 3 – 5 days’ healing, you will be instructed to turn the screw in your upper brace appliance to gently widen the top jaw in very small amounts. You will carry on turning the screw, twice every day, for a number of days, until the desired widening is achieved.

This will produce a large gap between your upper central incisors, which will gradually start to close as your teeth drift towards each other over the next few months. New bone forms in the gap, and fixed braces are then used to straighten your teeth and further close the gap.

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Nicholas Lee: Oral & Maxillofacial Surgeon, Sheffield UK